Help repairing/rebuilding MLC on severely damaged Wii U NAND

[SDIO]

I only used SanDisk cards and tried one old samsung card I had laying around. But I saw others using the Samsung Endurance card, so it should be fine. So far almost every card has worked. There were just a few cheapo cards, which skimped on the size and where a little to small. The Samsung cards were always big enough so far. You would need to use a 32GB card, if you want to use your old mlc Image. If you would want to rebuild, I would recommend to go to 64GB.

After merging:

copy /b mlc.bin.part01 + mlc.bin.part02 + (...) + mlc.bin.part15 mlc.bin

You can find wfs-extract here: https://github.com/koolkdev/wfs-tools/releases/tag/v1.0
And you would use a command like this:

wfs-extract --input mlc.bin --otp otp.bin --output mlc-extract --mlc 2>error.txt

This gives you an error.txt file containing all the errors.

 

[Nalyd217]

Looks like there are about 1700 errors. A large number of them appear to be 00050002\\1012bd01 and 00050002\\101df401 (Pikmin 3 demo, and Pokken Tournament demo respectively). Do you think it would be easier to repair this, or rebuild? Or I guess what would the pros and cons be

At this point though, I think I'm just waiting for the nand-aid to come in before I can proceed.

Post automatically merged: Sep 11, 2023

I went through the errors, and if I'm interpreting it right, it looks like there are about 35 unique titles with errors. I got the title names from http://wiiubrew.org/wiki/Title_database, but 00050030-10013100 wasn't listed.

 

[SDIO]

First of all don't turn the Wii U on again untill you installed NAND-AID, if you are planning to use that dump for the NAND-AID.
Else the Wii U might write to the mlc and than the Image won't mage the scfm anymore and you would need to get a new dump.

The errors don't look that bad, we don't have corrupted folders, so it should be fully fixable.
You would basically follow this tutorial: https://gbatemp.net/threads/160-0103-error.636361/

After you installed NAND-AID you will first reinstall the broken system titles. That will hopefully get the Wii U booting again, so we can use Data Management and FTP to do the rest. If we don't get it booting we need to use the wupclient to clear the rest till it boots. There are two system titles (00050030-1001710a - Wii U Electronic Manual and 00050010-1004D100 - Notidfications), which have a corrupted title.fst. There the reinstall will probably fail, so we skip them first, as the Wii U can probably boot without them.
After that you will manually delete these two titles and then Install them again.
Then you delete the broken files in usr/boss and usr/save.
Once that is done, you should be able to use Data Management to delete the corrupted games.
For the "LEGO® Batman™ 3 Beyond Gotham" and "Skylanders Trap Team" only the update and not the main game seems to be corrupted.

Once deleted you should be able to reinstall the deleted titles from the eShop. For the updates just launch the Game again.

Post automatically merged: Sep 11, 2023

00050030-10013100

My wii u doesn't even have this save. You are probably fine if you delete the whole folder for that save.
You have Super Mario 64 double in your list, because one is the game and the other save.

Also 00050000 or 00050002 are the main game, while 0005000e is just the update

 

[Nalyd217]

Thanks for the info! Once the dump finished, I did pull the plug to turn it off like the guide said. I also taped over my power port for now so I don't forget in the meantime lol.

 

[Nalyd217]

My 32gb endurance SD card, as well as NAND AID are in hand. Just to ensure I am setting up the SD card properly, is the following correct?

• after dumping MLC, merge the bin files into 1 bin file
• Open Win32DiskImager
  • select the merged bin file
  • select the sd card
  • write the bin onto the sd card

Then once the nand aid is soldered, it should be good to insert and power the wii u back on into the recovery menu, correct?

 

[SDIO]

Yes

 

[Nalyd217]

My friend and I got the nand-aid installed, and it went pretty smoothly. Now I'm on to actually fixing the corruption. I need to sleep soon, but I've begun reinstalling the corrupted sys\\title files using JNUSTool. The first 5 installed normally, but 00050010-1004d100 failed with error "fffcffe5". How do I resolve this? (Side note, how do I batch install the rest of these, because one by one is getting tedious lol).

Also, what do I do about these other directories? The guide says that usr\\title is basically safe to delete. But I also have a couple in usr\\save and usr\\boss that I'm not sure what to do with.


Note - error.txt file is from before I started reinstalling titles.

 

[V10lator]

@Nalyd217 First install the rest of the titles, so all except the one failing now. To batch install just put them all into the install folder, like install/titleA/ install/titleB/ and so on. After that re-run the MLC Checker and upload the new file, please.

 

[Nalyd217]

Alright I installed the rest and these are the results:

• From my last post, 00050010-1004d100 (Notifications) failed to install, error fffcffe5
• A new one failed, 00050030-1001710a (Wii U Electronic Manual), error fffbf3b5
• I was unable to download 00050030-10011109 (Error (OSv9)) from JNUSTool

Attached is the MLC checker ran after all sys\\title installed or attempted install. Please let me know what to do next

 

[SDIO]

Did you try to boot? Maybe it can now boot and run homebrew, so we can use ftp and nuspli. And yes JNUS has a bug, which prevent it from downloading the error titles

 

[Nalyd217]

Duh, I should have tried to before, but yes it boots!

 

[SDIO]

good, then install tiramisu or aroma. Then you can use FTP to delete the folders of the titles which failed to install and then you can use NUSpli to install them again.
If we cleaned all the corruption in sys with that, then you can use the Datamanagement to delete the broken usr titles and install them again from the eshop

 

[Nalyd217]

So, I have aroma working, I can see the menu with the list of plugins, but I can't get FTPiiU to show up here. I believe I put it's files in the relevant folders on my SD. Is there another step I'm missing?

 

[SDIO]

If you have FTPiiU in the aroma package it should just be there. Maybe try downloading and extracting again.

 

[Nalyd217]

Not sure why it wasn't there on mine, but I found the wps file on a linked github page and that seems to have worked.

Post automatically merged: Sep 26, 2023

Alright, I'm down to 16 errors only, they're attached below, but they're:

• usr\\boss - 00050010-10066000 - ECO process
• usr\\save - 00050000-10145c00 - SUPER MARIO 3D WORLD
• usr\\save - 00050030-10013100 - ???

Am I able to just FTP back in and delete these?

 

[V10lator]

Am I able to just FTP back in and delete these?

Just use NUSspli to reinstall them.

 

[Nalyd217]

I have 3D World on a disc though, I never had it installed digitally. Is it the game that's corrupted or a save file?

 

[V10lator]

Oh, now I see this is save/boss data. In case this isn't important to you try deleting the save data of 3d world from settings -> data management. For ECO and that unknown ID I would delete with FTP. Also maybe disable standby functions from settings, reboot, then re-enable them (this might fix the ECO process data).

 

[Nalyd217]

It is done, the Wii U has zero errors and is fully operational. Thank you guys for all the help while I worked through this!